A particle starting from the origin (0, 0) moves in a straight line in the (x, y) plane. Its coordinates at a later time are ( 
, 3). The path of the particle makes with the x-axis an angle of :
Text Solution
Verified by ExpertsThe correct answer is:
C
Slope of the path of the particle gives the measure of angle required. Draw the situation as shown. OA represents the path of the particle starting from origin 0 (0,0), Draw a perpendicular from point A to x-axis. Let path of the particle makes an angle θ with the x-axis, then
tan θ = slope of line OA
tan θ = OA
= 
= 
= 
or θ = 60°
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